Cavity grid for scalable quantum computation with superconducting circuitsF. Helmer1, M. Mariantoni2, 3, A. G. Fowler4, J. von Delft1, E. Solano1, 5 and F. Marquardt1
1 Department of Physics, CeNS, and ASC, Ludwig-Maximilians-Universität - Theresienstrasse 37, 80333 Munich, Germany, EU
2 Walther-Meißner-Institut, Bayer. Akademie der Wissenschaften - Walther-Meißner-Str. 8, 85748 Garching, Germany, EU
3 Department of Physics, Technische Universität München - James-Franck-Str., 85748 Garching, Germany, EU
4 Institute for Quantum Computing, University of Waterloo - Waterloo, ON, Canada
5 Departamento de Química Física, Universidad del País Vasco - Euskal Herriko Unibertsitatea - 48080 Bilbao, Spain, EU
received 4 December 2008; accepted in final form 16 February 2009; published March 2009
published online 20 March 2009
We propose an architecture for quantum computing based on superconducting circuits, where on-chip planar microwave resonators are arranged in a two-dimensional grid with a qubit at each intersection. This allows any two qubits on the grid to be coupled at a swapping overhead independent of their distance. We demonstrate that this approach encompasses the fundamental elements of a scalable fault-tolerant quantum-computing architecture.
03.67.Lx - Quantum computation architectures and implementations.
42.50.Pq - Cavity quantum electrodynamics; micromasers.
85.25.-j - Superconducting devices.
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